package scheduler

import (
	"time"
)

// TaskMigration represents a task migration operation
type TaskMigration struct {
	TaskID    string
	FromAgent string
	ToAgent   string
	Priority  TaskPriority
	Cost      float64
	Timestamp time.Time
}

// MigrationCost calculates the cost of migrating a task
type MigrationCost struct {
	StateTransferCost float64
	DowntimeCost      float64
	ResourceCost      float64
	TotalCost         float64
}

// NewTask creates a new task
func NewTask(id, taskType string, priority TaskPriority, capabilities []string) *Task {
	return &Task{
		ID:                   id,
		Type:                 taskType,
		Priority:             priority,
		RequiredCapabilities: capabilities,
		Metadata:             make(map[string]interface{}),
		AssignedTo:           "",
		Status:               "pending",
		StartTime:            time.Now(),
		EstimatedDuration:    0,
		ActualDuration:       0,
	}
}

// CalculateMigrationCost calculates the cost of migrating this task
func (t *Task) CalculateMigrationCost(fromAgent, toAgent string) float64 {
	// Implementation
	return 0.0
}

func (t *Task) GetID() string {
	return t.ID
}

func (t *Task) calculateStateTransferCost() float64 {
	// Base cost depends on task type
	baseCost := 1.0

	// Adjust based on task complexity
	if complexity, ok := t.Metadata["complexity"].(float64); ok {
		baseCost *= complexity
	}

	// Adjust based on data size
	if dataSize, ok := t.Metadata["data_size"].(int64); ok {
		baseCost *= float64(dataSize) / 1024 // Cost per KB
	}

	return baseCost
}

func (t *Task) calculateDowntimeCost() float64 {
	// Base cost depends on priority
	baseCost := float64(t.Priority) * 2

	// Adjust based on estimated duration
	if t.EstimatedDuration > 0 {
		baseCost *= t.EstimatedDuration.Seconds() / 60 // Cost per minute
	}

	return baseCost
}

func (t *Task) calculateResourceCost(targetAgent string) float64 {
	// Implementation depends on agent's resource metrics
	return 1.0
}
